CN109654026A - A kind of self priming centrifugal pump - Google Patents
A kind of self priming centrifugal pump Download PDFInfo
- Publication number
- CN109654026A CN109654026A CN201710948830.0A CN201710948830A CN109654026A CN 109654026 A CN109654026 A CN 109654026A CN 201710948830 A CN201710948830 A CN 201710948830A CN 109654026 A CN109654026 A CN 109654026A
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- CN
- China
- Prior art keywords
- pump
- gas
- self priming
- centrifugal pump
- priming centrifugal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/02—Self-priming pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of self priming centrifugal pump, the self priming centrifugal pump are combined by housing parts and pump body portion, are mainly made of gas-liquid separation chamber, reflux valve gear, fluid reservoir, axis, guide vane, impeller etc.；The self priming centrifugal pump pump body portion is made of axis, guide vane, impeller；The gas-liquid separation chamber completes the separation function of gas and liquid；The separation gas pump discharge discharge, separation water flow back into the circulation of pump inlet participation next time from return port；The return port is ring structure；The reflux valve gear cooperates valve seat to realize backflow functionality by spring leaf；The fluid reservoir be in pump case inner casing it is outer between cavity lower part, top carries out steam-water separation for steam-water mixing liquid in starting process and is used.The present invention it is at low cost, high-efficient, noise is small, applied widely, have the characteristics that operate be easy, move it is flexible.
Description
Technical field
The present invention relates to water pump technology more particularly to a kind of self priming centrifugal pumps.
Background technique
Self priming pump belongs to special centrifugal pump, and a certain amount of water is added into the pump housing before only needing first start, without that will intake
Pipe is full of water, gas in water inlet pipe can be arranged light through certain time after starting, can enter the pump worked normally.It utilizes gas-liquid
Mixing principle realizes intake-gas with pump special construction, and vacuum state to a certain degree is formed in pump suction pipe road, is not necessarily to
Other subsidiary special air extractors, except for the first time using diversion is needed in addition to, use can no longer diversion every time later.With use
Conveniently, the advantages that reliable operation is convenient for long-distance centralized control, carries out automatic operation, thus it is widely used in ship, agricultural, city
The departments such as political affairs, electric power, mine, chemical industry are especially suitable for flowing irrigation and drainage, mobile working, start the fields such as frequent and liquid filling difficulty.
Chinese invention patent (201480072902.4 applying date of application number, 2014 .12.12) discloses a kind of self-priming
Centrifugal pump, comprising: with the first shell part of antetheca with entrance, the second shell part with outlet, rotatably
The impeller being arranged in second shell part, and pump screw rod, are rotatably disposed in first shell part, are connected to leaf
Wheel and including centerbody, helical blade arrange around centerbody with for giving any gas being present in liquid to impeller,
Wherein, centerbody is arranged at a certain distance from the side from the antetheca towards centerbody, so that at least width of 12mm
Channel is formed between centerbody and the side of the antetheca towards centerbody.
Chinese invention patent (201610095204.7 applying date 2016.02.22 of application number) discloses a kind of self-priming
Centrifugal pump, including centrifugal pump body, the centrifugal pump body are equipped with blade wheel chamber, and the blade wheel chamber is equipped with water inlet, the water inlet
Mouth connects with water inlet pipe, is equipped with check valve on the water inlet pipe, is additionally provided with a steam-water separation bucket, the steam-water separation bucket is set to
Above centrifugal pump body, the blade wheel chamber top is equipped with interface on protruding upward one, and the upper interface is connected to blade wheel chamber, institute
The bottom and upper interface for stating steam-water separation bucket are connected, and the steam-water separation bucket connects water return pipeline, the water return pipeline and leaf
Engineer room connection, the water return pipeline are equipped with direct-operated regulator.
Summary of the invention
Since self priming pump can be realized self-priming, convenient for long-range control, therefore industrial or agricultural multiple fields are widely used in, this is just
More stringent requirements are proposed for self-priming performance and efficiency to self priming pump etc..And self-priming centrifugal pump self-priming performance is not achieved at present
Expected effect, higher cost, maintenance difficult.For existing equipment and the deficiency of technology, the invention reside in provide a kind of self-priming
Centrifugal pump, structure is simple and convenient to operate, is low in cost, strong applicability.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of self priming centrifugal pump, which is combined by housing parts and pump body portion, mainly by gas-liquid separation
The compositions such as room, reflux valve gear, fluid reservoir, axis, guide vane, impeller；The self priming centrifugal pump pump body portion by axis, guide vane,
Impeller composition；The gas-liquid separation chamber completes the separation function of gas and liquid；The separation gas pump discharge discharge, point
The circulation of pump inlet participation next time is flowed back into from return port from water；The return port is ring structure；The return valve
Device cooperates valve seat to realize backflow functionality by spring leaf；The fluid reservoir be in pump case inner casing it is outer between cavity under
Portion, top carry out steam-water separation for steam-water mixing liquid in starting process and are used.
As a preferred solution of the present invention, the suction lift of the self priming pump can reach 8m, and self-priming time is only
180s。
As a preferred solution of the present invention, the self-priming pump motor power is 3Kw, frequency 50Hz, revolving speed n
=2900r/min。
As a preferred solution of the present invention, the position of return port front end below one stage impeller.
As a preferred solution of the present invention, the impeller uses receded disk impeller, is uniformly distributed for 6 blades, right
The guide vane answered also is 6 blades.
As a preferred solution of the present invention, the gas-liquid separation chamber retaining ring 80mm, liquid storage building volume 800ml are returned
Discharge orifice size 8x14mm, spring leaf thickness 0.25mm.
The invention has the advantages that the present invention is at low cost, high-efficient, noise is small, applied widely, there is operation to hold
Easily, the features such as flexible is moved.
Detailed description of the invention
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
The drawings and the specific embodiments, the present invention will be described in further detail.
Fig. 1 is the structural diagram of the invention.
Tu Zhong 1- gas-liquid separation chamber, 2- reflux valve gear, 3- fluid reservoir, 4- axis, 5- guide vane, 6- impeller, the 7- pump housing.
Specific embodiment
In Fig. 1, self priming centrifugal pump is combined by housing parts and pump body portion, mainly by gas-liquid separation chamber, reflux
The composition such as valve gear, fluid reservoir, axis, guide vane, impeller；The self priming centrifugal pump pump body portion is by axis, guide vane, impeller sets
At；The gas-liquid separation chamber completes the separation function of gas and liquid；The described separation gas pump discharge discharge, separation water from
Return port flows back into the circulation of pump inlet participation next time；The return port is ring structure；The reflux valve gear by
Spring leaf cooperates valve seat to realize backflow functionality；The fluid reservoir be in pump case inner casing it is outer between cavity lower part, on
Portion carries out steam-water separation for steam-water mixing liquid in starting process and is used.
The composite mechanical hand working method are as follows: before starting water pump, need that a certain amount of water, fluid reservoir is added in self priming pump
3 can be such that water is retained at winding pipe exit, and when starting water pump, with the rotation of impeller, the import of impeller will form vacuum, make import
The gas and water of pipeline, which are mixed, flow to gas-liquid separation chamber 1, and under the action of gas-liquid separation chamber, gas passes through outlet row
Out, water flows back into impeller inlet by return valve 2, again with gas mixing, recycles repeatedly, until the gas in inlet tube
All discharges, self priming pump, which completes self-priming process, at this time closes return valve due to the increase of pressure difference, and self priming pump at this time is exactly
One common water pump
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to the present invention
Technical solution described in embodiment, those skilled in the art should understand that, still it can modify to the present invention
Or equivalent replacement, to reach identical technical effect；Needs are used as long as meeting, all within protection scope of the present invention.
Claims (6)
1. a kind of self priming centrifugal pump, which is combined by housing parts and pump body portion, mainly by gas-liquid point
From compositions such as room, reflux valve gear, fluid reservoir, axis, guide vane, impellers；The self priming centrifugal pump pump body portion by axis, lead
Leaf, impeller composition；The gas-liquid separation chamber completes the separation function of gas and liquid；The separation gas pump discharge row
Out, separation water flows back into the circulation of pump inlet participation next time from return port；The return port is ring structure；Described returns
Flow valve device cooperates valve seat to realize backflow functionality by spring leaf；The fluid reservoir be in pump case inner casing it is outer between cavity
Lower part, top in starting process steam-water mixing liquid carry out steam-water separation be used.
2. self priming centrifugal pump according to claim 1, it is characterized in that: the suction lift of the self priming pump can reach
8m, self-priming time are only 180s.
3. self priming centrifugal pump according to claim 1, it is characterized in that: the self-priming pump motor power is 3Kw, frequency
Rate is 50Hz, revolving speed n=2900r/min.
4. self priming centrifugal pump according to claim 1, it is characterized in that: the position of the return port is under one stage impeller
Square front end.
5. self priming centrifugal pump according to claim 1, it is characterized in that: the impeller uses receded disk impeller, it is 6 leaves
Piece is uniformly distributed, and corresponding guide vane is also 6 blades.
6. self priming centrifugal pump according to claim 1, it is characterized in that: the gas-liquid separation chamber retaining ring 80mm, liquid storage
Building volume 800ml, return port size 8x14mm, spring leaf thickness 0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948830.0A CN109654026A (en) | 2017-10-12 | 2017-10-12 | A kind of self priming centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948830.0A CN109654026A (en) | 2017-10-12 | 2017-10-12 | A kind of self priming centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109654026A true CN109654026A (en) | 2019-04-19 |
Family
ID=66109165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710948830.0A Pending CN109654026A (en) | 2017-10-12 | 2017-10-12 | A kind of self priming centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109654026A (en) |
-
2017
- 2017-10-12 CN CN201710948830.0A patent/CN109654026A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190419 |
|
| WD01 | Invention patent application deemed withdrawn after publication |